After slicing several files to print a paint rack, I realized that most of them used a lot of material.

I decided to make a model based on a honeycomb structure, leaving only the support bars. This is capable to hold 24 bottles of paint using only ~55gr of filament.

It can be printed easily without the need for supports, and high speeds are not recommended, but we are sacrificing time in exchange for reduced material costs.

I am adding a model with base and another without, in case you decide to stack them. The design is not optimized for stacking, as all the edges are the same thickness for better stability when printing, but this could be easily fixed with a clipper and some glue, removing the exceding sides.

Be gentle when removing it from the bed. The walls are 2 mm thick and the columns are 3 mm thick up to the hollow. It can hold bottles without any problem, but it cannot withstand high pressures (it does not even have infill).